Agilent/Keysight M9801A

The Keysight M9801A is a PXIe-based vector network analyzer module designed for modular RF and microwave test systems. It operates from 9 kHz to 6.5 GHz and is available in 2-, 4-, or 6-port configurations. Multiple modules cascade within a single PXIe chassis to create multiport VNAs with up to 50 ports, enabling simultaneous N-port measurements with full error correction.

The M9801A delivers dynamic range, measurement speed, trace noise, and temperature stability across demanding RF applications.

Technical Specifications

• Frequency Range: 9 kHz to 6.5 GHz


• Port Configurations: 2-, 4-, or 6-port modules


• Multiport Architecture: Up to 50 ports per chassis with cascaded modules


• Multiport Correction: N-port error correction capability with fast electronic calibration (ECal) support


• Measurement Applications: Spectrum analysis, noise figure, and general RF characterization


• User Interface: Native GUI matching Keysight network analyzer platforms


• Measurement Foundation: Derived from proven PNA, ENA, and Streamline Series VNA measurement science

Key Features

• dynamic range and measurement repeatability


• Fast multiport calibration via electronic calibration modules


• Modular design for scalable system configuration


• Low-latency, high-bandwidth measurement architecture


• Temperature-stable performance across operating environments

Typical Applications

• Multiport component characterization


• Network analyzer measurements requiring simultaneous port access


• RF and microwave system integration testing


• Applications demanding high measurement speed and low noise floors

Compatibility & Integration The M9801A integrates with 18-slot PXIe chassis including the M9018B (PCIe Gen 2, up to 708–858 W total module power) and M9019A (PCIe Gen 3, 24 GB/s maximum system bandwidth, 8 GB/s slot-to-slot bandwidth). Both chassis occupy 4U of rack space and feature temperature-controlled cooling with auto-speed fans for optimal module thermal management. AC input supports 100–120 V (1200 W max) and 200–240 V (1300 W max) configurations.